93689881 has 4 divisors (see below), whose sum is σ = 93973264. Its totient is φ = 93406500.

The previous prime is 93689857. The next prime is 93689887. The reversal of 93689881 is 18898639.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 93689881 - 2¹³ = 93681689 is a prime.

It is a super-2 number, since 2×93689881² = 17555587603588322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93689887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141195 + ... + 141856.

It is an arithmetic number, because the mean of its divisors is an integer number (23493316).

Almost surely, 2^93689881 is an apocalyptic number.

It is an amenable number.

93689881 is a deficient number, since it is larger than the sum of its proper divisors (283383).

93689881 is a wasteful number, since it uses less digits than its factorization.

93689881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283382.

The product of its digits is 746496, while the sum is 52.

The square root of 93689881 is about 9679.3533358381. The cubic root of 93689881 is about 454.1830221345.

The spelling of 93689881 in words is "ninety-three million, six hundred eighty-nine thousand, eight hundred eighty-one".